feat: display progress for finalising audio and summarising

src/components/ProgressBar.tsx

@@ -0,0 +1,19 @@
+interface ProgressBarProps {
+  progress: number; // 0-100
+  label?: string;
+}
+
+export function ProgressBar({ progress, label }: ProgressBarProps) {
+  return (
+    <div className="progress-container">
+      {label && <div className="progress-label">{label}</div>}
+      <div className="progress-bar">
+        <div
+          className="progress-fill"
+          style={{ width: `${Math.min(100, Math.max(0, progress))}%` }}
+        />
+      </div>
+      <div className="progress-text">{Math.round(progress)}%</div>
+    </div>
+  );
+}